GEANT4 models of HPGe detectors for radioassay

R. H.M. Tsang, A. Piepke, D. J. Auty, B. Cleveland, S. Delaquis, T. Didberidze, R. MacLellan, Y. Meng, O. Nusair, T. Tolba

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Radiation transport models of two high purity germanium detectors, GeII and GeIII, located at the University of Alabama have been created in GEANT4 (Agostinelli et al., 2003)[1].These detectors have been used extensively for radioassay measurements of materials used in various low background experiments. The two models have been validated against actual data under several scenarios typically seen in radioassay measurements. The systematic uncertainties of the models for GeII and GeIII are estimated to be ∼12% and ∼9% respectively.

Original languageEnglish
Pages (from-to)75-82
Number of pages8
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume935
DOIs
StatePublished - Aug 11 2019

Bibliographical note

Funding Information:
This research was supported in part by DOE Office of Nuclear Physics under grant number DE-FG02-01ER41166 and the NSF under award number 0923493. RHMT was supported in part by the Nuclear-physics, Particle-physics, Astrophysics, and Cosmology (NPAC)Initiative, a Laboratory Directed Research and Development (LDRD)effort at Pacific Northwest National Laboratory (PNNL). PNNL is operated by Battelle for the U.S. Department of Energy (DOE)under Contract No. DE-AC05-76RL01830. The authors acknowledge the support of the Natural Sciences and Engineering Research Council of Canada (NSERC). The authors would like to thank SNOLAB for providing support in infrastructure and personnel, and the nEXO collaboration for providing the opportunity to perform this study.

Funding Information:
The authors acknowledge the support of the Natural Sciences and Engineering Research Council of Canada (NSERC) . The authors would like to thank SNOLAB for providing support in infrastructure and personnel, and the nEXO collaboration for providing the opportunity to perform this study.

Funding Information:
This research was supported in part by DOE Office of Nuclear Physics under grant number DE-FG02-01ER41166 and the NSF under award number 0923493 .

Funding Information:
RHMT was supported in part by the Nuclear-physics, Particle-physics, Astrophysics, and Cosmology (NPAC) Initiative, a Laboratory Directed Research and Development (LDRD) effort at Pacific Northwest National Laboratory (PNNL). PNNL is operated by Battelle for the U.S. Department of Energy (DOE) under Contract No. DE-AC05-76RL01830 .

Publisher Copyright:
© 2019

Keywords

  • GEANT
  • Gamma spectrometry
  • HPGe
  • Monte Carlo model
  • Radioassay

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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